Hello
We are doing a 300W full bridge converter. Vin=300-400VDC, Vout = 15V, F(sw)=120khz.
We would like to add a 10uH inductor in series with the transformer primary in order to reduce the overvoltage ring on the secondary diodes at FET switch on. Can you state why this does not appear to be a standard procedure, after all, it is an easy way of getting improvement with little or no downside.
(ltspice sim and schem attached)
We are doing a 300W full bridge converter. Vin=300-400VDC, Vout = 15V, F(sw)=120khz.
We would like to add a 10uH inductor in series with the transformer primary in order to reduce the overvoltage ring on the secondary diodes at FET switch on. Can you state why this does not appear to be a standard procedure, after all, it is an easy way of getting improvement with little or no downside.
(ltspice sim and schem attached)